Era
20th century
12
19th century
5
21st century
3
Civil War, 1861-1865
3
1898-1959
2
Revolution, 1910-1920
2
1547-1616
1
1735-1818
1
1738-1796
1
1748-1829
1
1789-1817
1
1838-1918
1
1874-1946
1
1876-1916
1
1878-1923
1
1881-1959
1
1885-1957
1
1889-1977
1
1893-1956
1
1898-1985
1
1899-1961
1
1899-1980
1
1901-1966
1
1902-1968
1
1911-1979
1
1922-2010
1
1924-2004
1
1929-1989
1
1935-
1
1939-
1
1939-1975
1
1942-
1
1953-
1
1958-
1
1962-
1
French and Indian War, 1754-1763
1
Napoleonic Conquest, 1808-1813
1
Revolution, 1775-1783
1
To 1800
1
Wars of Independence, 1810-1821
1